html多附件上传c#',asp.net(c#)多文件上传_asp.net技巧

FileUp.aspx 页面

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2-//W3C//DTD HTML 4.0 Transitional//EN” >

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4 

5   

6   

7    function addFile()

8    {

9     var str &＃61;

10     document.getElementById(MyFile).insertAdjacentHTML(“beforeEnd”,str)

11    }

12   

13 

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15   

16     

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//****************************************************************

//FileUp.aspx.cs

1using System;

2using System.Collections;

3using System.ComponentModel;

4using System.Data;

5using System.Drawing;

6using System.Web;

7using System.Web.SessionState;

8using System.Web.UI;

9using System.Web.UI.WebControls;

10using System.Web.UI.HtmlControls;

11

12namespace TestCenter

13{

14  /**

15  /// 实现多文件上传

16  ///

17  public class FileUp: System.Web.UI.Page

18  {

19    protected System.Web.UI.WebControls.Button UploadButton;

20    protected System.Web.UI.WebControls.Label strStatus;

21

22    private void Page_Load(object sender, System.EventArgs e)

23    {

24            if (this.IsPostBack) this.SaveImages();

25    }

26

27    private Boolean SaveImages()

28    {

29      /**遍历File表单元素

30      HttpFileCollection files  &＃61; HttpContext.Current.Request.Files;

31

32      /** 状态信息

33      System.Text.StringBuilder strMsg &＃61; new System.Text.StringBuilder();

34      strMsg.Append(“上传的文件分别是&＃xff1a;

35      try

36      {

37        for(int iFile &＃61; 0; iFile

38        {

39          /**检查文件扩展名字

40          HttpPostedFile postedFile &＃61; files[iFile];

41          string fileName, fileExtension;

42          fileName &＃61; System.IO.Path.GetFileName(postedFile.FileName);

43          if (fileName !&＃61; “”)

44          {

45            fileExtension &＃61; System.IO.Path.GetExtension(fileName);

46            strMsg.Append(“上传的文件类型&＃xff1a;” &＃43; postedFile.ContentType.ToString() &＃43; “
”);

47            strMsg.Append(“客户端文件地址&＃xff1a;” &＃43; postedFile.FileName &＃43; “
”);

48            strMsg.Append(“上传文件的文件名&＃xff1a;” &＃43; fileName &＃43; “
”);

49            strMsg.Append(“上传文件的扩展名&＃xff1a;” &＃43; fileExtension &＃43; “

50            /**可根据扩展名字的不同保存到不同的文件夹

51            ///注意&＃xff1a;可能要修改你的文件夹的匿名写入权限。

52            postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath(“images/”) &＃43; fileName);

53          }

54        }

55        strStatus.Text &＃61; strMsg.ToString();

56        return true;

57      }

58      catch(System.Exception Ex)

59      {

60        strStatus.Text &＃61; Ex.Message;

61        return false;

62      }

63    }

64